Reinforcing device.



A. F. SCHROEDER.

REINFORCING DEVICE.

APPLICATION F!LED FEB. a. 1911.

I Patented J 11116 11, 1918.

" run sra'rne i no.

ALBERT F. SCHROEDER, OF CLEVELAND, OHIO.

Rnmroncme DEVICE.

Specification of Letters Patent.

Patented June 11, rate.

To all whom it may concern:

Be it known that I, ALBERT F. SCHROEDER, a citizen of the United States,residing at city of Cleveland, in the county of Guyahoga and State ofOhio, have invented a new and useful Improvement in Reinforcing Devices,of which the following is a specification, the principle of theinvention being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

My invention is associated with a reinforcing device or a metallic tiebrace adapted to be embedded in concrete construction. Moreparticularly, the invention relates to a member adapted to connect andhold a series of primary reinforcing rods in proper spaced relation,during the pouring of indurating material thereabout.

The object of my invention besides contriving a structural design, whichwill bescope of the claim hereunto appended.

Adverting to the drawing:

Figure I illustrates an elevation of a reinforcing device embodying myinvention.

Fig. II is a bottom plan of Fi I.

Fig. III is a top plan of Fig. i

IV is a section on line IVIV of Fig. V illustrates a series ofmembersembodying my invention asused preparatory {)0 being embedded in areinforced concrete eam.

The form which theidrawing illustrates for my invention is I-shaped andas such 1s adapted for use in the manufacture of concrete I-beams ortrussed flooring, in whlch a plurality of parallelly extending rods areto be embedded.

The structure exemplified is a sheet metal stamping which commendsitself to commercial use because it may be made from scrap material.substantially parallel end members 1 and 2, connected midway by amember, 3. The member 1, should be considered as that portion of thewhole which will rest nearest the bottom of the beam and it will be seento have intermediate strengthening ribs 4, and comparatively thin flatends 5, each of which is fashioned with a cut-out portion having amainly circular part 6, and a constricted part 7, opening through theupper edge. The inherent flexibility of the metal will permit of bendingthe hooked extremities 8, so as to allow the insertion of the primaryreinforcing rods 9, after which the hook portions 8, may be returned toa position substantially within the plane of the ends 5, todtherebyprevent the dislodgment of the ro s. I

The connecting web member 3, divaricat/es and connects with the member 1in such a way as to inclose a large circular opening 10, through whichthe larger primary reinforcing rod 11, is to extend. The member 3, isstiffened by a ribbed formation throughout its extent.

The upper member 2, is similarly pro- In shape it comprises two I videdintermediately of its ends with ribbed portions 12, and 'with flat endportions 13 and likewise with cut-out portions 14:, all of such a shapeas to provide hooks 15, capable of being bent laterally. In addition,the upper member 2, is provided atits middle with an upwardly, directedflat extension 16, and this latter is similarly provided with the sametype of cut-out 17, to form a hook 18. Other rods 9 appear occupying thecutout portions 14:.

The special advantage which my invention has over devices heretoforeused is due to the idea of slotting through the openingswhich are toaccommodate the majority of the reinforcing rods, so that the entire rodmay be simultaneously inserted in a row of openings instead of beingseparately inserted through each opening. In operation after therequisite number of devices like that which constitutes the subjectmatter of this application have been collected upon the rod 11, theother five smaller rods may be very quickly inserted into the alinedopenings 6, 14 and 17 respectively, and thereafter locked therein bybending the hooks 8, 15 and 18 back to the near closing position seen inFigs. I and V. It is to be understood that devices of this character maybe supplied to tne'trade with the hooks 8, l5 and 18 already bent out ofthe plane of the opening as shown in Figs. 11 and III so that theassembly of the reinforcing structure in its entirety may be the morespeedily efi'ected.

During the manufacture of I beams the stamping is suspended in the moldagainst the lower sides of the upper member 2, otherwise the Weight ofthe rods would depress it below its proper position. In order tominimize the portion of the stamping which will thus become flush withthe under surface of the indurated material there, I bring such twolower sides to a point at 19, thereby concealing all of the stampin withthe exception of such points as will e readily understood by thoseskilled in the art.

I claim:

A reinforcing device of the character described comprising a skeletonmember having a plurality of ends thin, substantially flat and somewhatflexible, such ends being furthermore fashioned with cut-0E portions,having constricted communication through an edge of the memberrespectively,

whereby the flexing of the material bordering said constricted cut-outarea enables the insertion of an object fitted to the remainder of thecut-out area, some of said ends being fashioned with points for thepurpose specified.

Signed by me, this 25th day of January,

1917. ALBERT F. SCHROEDER.

